Home / 208,764,242,791.28-313,018,207,854-81,129,906,276.32

Finding the Fourth Proportional to 208,764,242,791.28, 313,018,207,854 and 81,129,906,276.32

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Solution

The fourth proportional to 208,764,242,791.28, 313,018,207,854 and 81,129,906,276.32 is: 121,645,055,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,764,242,791.28 : 313,018,207,854 = 81,129,906,276.32 : x
  2. Step 2: Convert to fraction form
    208,764,242,791.28/313,018,207,854 = 81,129,906,276.32/x
  3. Step 3: Cross multiply
    208,764,242,791.28x = 313,018,207,854 × 81,129,906,276.32
  4. Step 4: Simplify right side
    208,764,242,791.28x = 25,395,137,865,976,675,041,280
  5. Step 5: Solve for x
    x = 25,395,137,865,976,675,041,280/208,764,242,791.28
  6. Step 6: Final answer
    x = 121,645,055,333.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.